To uninstall dehydrated just follow these instructions.
/debian/stretch/main///install/index.html ACME client implemented in Bash Debian 9.0 misc 0.3.1-3
sudo apt-get remove dehydrated
Which will remove just the dehydrated package itself.
sudo apt-get remove --auto-remove dehydrated
This will remove the dehydrated package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for dehydrated then this will work.
sudo apt-get purge dehydrated
Or similarly, like this dehydrated
sudo apt-get purge --auto-remove dehydrated
|Maintainer||Debian Let's Encrypt
|Description||ACME client implemented in Bash|